Error: Unexpected token in Script Tag API

Shopify Apps
1

Hi,

I’m new in Shopify APP development, I’m working on custom app which use script tag api. Successfully install app on development store but when i run the app it throws an error.

Error: Array ( [error] => 783: unexpected token at ‘script_tag%5Bevent%5D=onload&script_tag%5Bsrc%5D=https%3A%2F%2Fflamead.com%2Fauksales_shopify_app%2Fjs%2Fscript_tag.js’ )

Script tag API request code:

<?php
require_once("inc/functions.php");

$token = 'cec259e930e2e9bf4c175e2b9677be4d';

$shop_url = 'checkout-scripts';

$script_tag = array('script_tag'=> array('event'=>'onload',"src"=>"https://flamead.com/auksales_shopify_app/js/script_tag.js"));
$scriptTag = shopify_call($token,$shop_url,'/admin/api/2020-10/script_tags.json',$script_tag,'POST');
$scriptTag = json_decode($scriptTag['response'],JSON_PRETTY_PRINT);
print_r($scriptTag);
?>

Please guide me how can i solve this. I tried it but un-successful.

Thanks,

Faisal